โปรแกรมการคิดเกรด โดยใช้คำสั่ง switch ด้วยภาษา C

1. 1: #include <stdio.h>
2: #include <stdlib.h>
3:
4: int main() {
5: int score;
6:
7: printf("Enter score: ");
8: scanf("%d", &score);
9:
10: if ((score >= 0) && (score <= 100)) {
11: switch (score / 10) {
12: case 10:
13: case 9:
14: printf("Grade: A");
15: break;
16: case 8:
17: if ((score % 10) >= 5)
18: printf("Grade: B+");
19: else
20: printf("Grade: B");
21: break;
22: case 7:
23: if ((score % 10) >= 5)
24: printf("Grade: B");
25: else
26: printf("Grade: C+");
27: break;
28: case 6:
29: printf("Grade: C");
30: break;
31: case 5:
32: if ((score % 10) >= 5)
33: printf("Grade: D+");
34: else
35: printf("Grade: D");
36: break;
37: default :
38: printf("Grade: F");
39: }
40: } else
41: printf("Score over scope");
42:
43: printf("nn");
44: system("PAUSE");
45: return 0;
46: }
47: